@inproceedings{ICLP-1991-Hagiya,
	author        = "Masami Hagiya",
	booktitle     = "{Proceedings of the Eighth International Conference on Logic Programming}",
	isbn          = "0-262-56058-5",
	pages         = "270--284",
	publisher     = "{MIT Press}",
	title         = "{Higher-Order Unification as a Theorem Proving Procedure}",
	year          = 1991,
}